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Description
Power Switching Regulator
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● 3.5A OUTPUT CURRENT
● 5.1VTO 40V OUTPUTVOLTAGE RANGE
● 0 TO 90% DUTY CYCLERANGE
● INTERNAL FEED-FORWARD LINEREG.
● INTERNAL CURRENT LIMITING
● PRECISE 5.1V ±2% ON CHIP REFERENCE
● RESETAND POWER FAIL FUNCTIONS
● INPUT/OUTPUT SYNC PIN
● UNDER VOLTAGE LOCK OUT WITH HYSTERETIC TURN-ON
● PWM LATCH FOR SINGLE PULSE PER PERIOD
● VERY HIGH EFFICIENCY
● SWITCHING FREQUENCY UP TO 200KHz
● THERMAL SHUTDOWN
● CONTINUOUS MODE OPERATION
DESCRIPTION
The L4974Aisa step down monolithic power switching regulator delivering 3.5A at a voltage variable from 5.1 to 40V.
Realized with BCD mixed technology, the device uses a DMOS output transistor to obtain very high efficiency and very fast switching times. Features of the L4974A include reset and power fail for micro-processors, feed forward line regulation, soft start, limiting current and thermal protection.The device is mounted in a Power dip 16+2+2 plastic package and requires few external components. Efficient operation at switching frequencies up to 200KHz allows reduction in the size and cost of external filter component.
Preview of the first 3 pages of the data sheet
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11 buyer reviews from Singapore
Christopher Wilson
Length of registration:7 years
I recently purchased the integrated circuit L4974A from Utsource and I am very pleased with the results. The circuit worked perfectly and I had no issues with installation. The quality of the product was excellent and I was able to test it without any problems. The customer service was also great and I received my order in a timely manner. I would highly recommend Utsource and the L4974A integrate
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03/17/2023
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All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
L4974A
L4974A has several brands around the world that may have alternate names for L4974A due to regional differences or acquisition. L4974A may also be known as the following names:
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Stock Status: 10000
Minimum: 1
Total Price:
Unit Price:6.88205
UTSOURCE
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United States
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